Javascript验证练习。请求师兄修改bug 。出错时候为什么不能显示 “确定”按钮？？

来源：互联网发布：阿拉伯语自学软件编辑：程序博客网时间：2024/04/29 21:59

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>无标题页</title>
    <style type="text/css">
            div {width:200;height:40;color:red}
          </style>

          <script type="text/javascript">

    function login()
    {
             wrong.style.display = "block";

             var sst=new person(txt_name.value ,txt_paswd.value );
             if(""==txt_name.value||""==txt_paswd.value )
             {
             wrong.innerHTML = "请输入完整的信息";

             }
             else
             {
             if(txt_name.value !="a" && txt_paswd.value !="a")
             {

             wrong.innerHTML="请输入正确信息";

             }
             else
             {
                  sst.show();
            wrong.style.display = "none";
             }

             }

    }
//    function ckpas()
//    {
//
//      if(txt_paswd.value =='')
//      alert("mima bu neng wei kong ");
//      document.getElementById ("txt_paswd")="";
//        document.getElementById ("txt_paswd").focus();
//
//
//    }
    function person(name,paswd)

    {

       this.name=name
       this.paswd=paswd;
      this.show=function(){



      alert("恭喜您输入正确"+"/n姓名："+this.name);


      }
    }

    function clearn()
    {
      txt_name.value="";
     txt_paswd.value="";

    }


    </script>
</head>
<body>

</body>
</html>